Sample Images: Olympus 12-40mm f/2.8 Pro M.Zuiko Digital EDSample Images: Olympus 12-40mm f/2.8 Pro M.Zuiko Digital ED(All images copyright Photography Online, Inc.)
Still Life tests, Panasonic GX1 body (sub-frame sensor)
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VFA Target, Panasonic GX1 body (sub-frame sensor)
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| 12mm f/2.8 | |
 Upper Left |  Center |
| 12mm f/8 | |
 Upper Left |  Center |
| 25mm f/2.8 | |
 Upper Left |  Center |
| 25mm f/8 | |
 Upper Left |  Center |
| 40mm f/2.8 | |
 Upper Left |  Center |
| 40mm f/8 | |
 Upper Left |  Center |